mcp-freecad

#!/usr/bin/env python3 """ FreeCAD Subprocess Loader This script loads FreeCAD in a separate Python process to avoid initialization issues. It communicates with the main process via pipes. """ import json import os import sys import traceback # REMOVED: Hardcoded path assumption - rely on environment (e.g., AppRun setup) # freecad_module_path = "/usr/lib/freecad-python3/lib" # if os.path.exists(freecad_module_path): # sys.path.append(freecad_module_path) try: import FreeCAD print("Successfully imported FreeCAD") print(f"FreeCAD Version: {FreeCAD.Version}") print(f"FreeCAD Build Date: {FreeCAD.BuildDate}") print(f"FreeCAD module location: {FreeCAD.__file__}") # Try to import FreeCADGui try: import FreeCADGui print("Successfully imported FreeCADGui") gui_available = True except ImportError as e: print(f"FreeCADGui not available: {e}") gui_available = False # Main command processing loop while True: try: # Read a command from stdin line = sys.stdin.readline() if not line: # End of stream break # Parse the command command = json.loads(line) cmd_type = command.get("type") params = command.get("params", {}) # Process the command result = {"success": True} if cmd_type == "ping": result["pong"] = True result["freecad_version"] = list(FreeCAD.Version) result["gui_available"] = gui_available elif cmd_type == "get_version": result["version"] = list(FreeCAD.Version) result["build_date"] = FreeCAD.BuildDate result["gui_available"] = gui_available elif cmd_type == "create_document": name = params.get("name", "Unnamed") doc = FreeCAD.newDocument(name) result["document_name"] = doc.Name elif cmd_type == "create_object": doc_name = params.get("document") obj_type = params.get("type") obj_name = params.get("name", "") properties = params.get("properties", {}) # Get the document if doc_name: doc = FreeCAD.getDocument(doc_name) else: doc = FreeCAD.ActiveDocument or FreeCAD.newDocument("Unnamed") # Create the object if obj_type == "box": obj = doc.addObject("Part::Box", obj_name or "Box") if "length" in properties: obj.Length = properties["length"] if "width" in properties: obj.Width = properties["width"] if "height" in properties: obj.Height = properties["height"] elif obj_type == "cylinder": obj = doc.addObject("Part::Cylinder", obj_name or "Cylinder") if "radius" in properties: obj.Radius = properties["radius"] if "height" in properties: obj.Height = properties["height"] elif obj_type == "sphere": obj = doc.addObject("Part::Sphere", obj_name or "Sphere") if "radius" in properties: obj.Radius = properties["radius"] else: result["success"] = False result["error"] = f"Unsupported object type: {obj_type}" if result["success"]: # Apply other properties for prop, value in properties.items(): if prop not in [ "length", "width", "height", "radius", ] and hasattr(obj, prop): setattr(obj, prop, value) # Recompute the document doc.recompute() result["object"] = { "name": obj.Name, "label": obj.Label, "type": obj.TypeId, } # Send the result back sys.stdout.write(json.dumps(result) + "\n") sys.stdout.flush() except Exception as e: # Send error back error_result = { "success": False, "error": str(e), "traceback": traceback.format_exc(), } sys.stdout.write(json.dumps(error_result) + "\n") sys.stdout.flush() except ImportError as e: # Report import error print(f"Failed to import FreeCAD: {e}") print(f"Python path: {sys.path}") # Send an error response error_result = { "success": False, "error": f"Failed to import FreeCAD: {e}", "traceback": traceback.format_exc(), } sys.stdout.write(json.dumps(error_result) + "\n") sys.stdout.flush() # Exit with error sys.exit(1)